Improvement in revolving fire-arms



D..sM1TH.

REVOLVING FIREfARMs. l

Patented Aug. 7,1877.

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hUNITED STATES PATENT 'OEEroE.

DExTEE SMITH, oF SPEINGEiELD, MASSAoHUsETTS, AsSIGNoE To DANIEL B.wEssoN, 0F SAME PLAGE.

, iMPRovEMi-:NT'IN REvoLvlNe FIRE-ARMS.

' Specification forming part of Letters Patent No. 193,836, dated August7, 1877; application filed June 12,1817.

To all whom it may concern:

Be it known that I, DEXTER SMITH, of Springfield, in the1 State ofMassachusetts,

have invented a new and useful Improvement .to engage with the xedprojection, and, by

tilting either the barrel or the frame, to extract the empty shell fromthe chamber, the nature and character of the invention being more fullyhereinafter described.

, Figure 1 represents one modification of my invention, and Fig. 2represents another modij fication of the same.

In the drawings, A represents the frame of a revolving fire-arm, towhich my invention is applicable. B represents the barrel, and C thechambered cylinder, arranged to revolve on the tubular pivot or base pinh, fixed to the arm just beneath the barrel B, and the extractor-stem bextends into this tubular pivot or base pin, in the usual manner. Y Y

A recess is made in the arm in front of the base-pin h, and, as arrangedin the modification shown in Fig. 1, into this recess is fitted a tube,s, to slide to and fro therein, with a spline therein, and a pin`inserted, or other convenient arrangement for limiting the slid- 'igmovement of the tube.

A rod or sliding piece, a, is inserted into this tube, with a spring, n,wound upon the forward and smaller part, said spring bearing, at itsrear end, against a shoulder or projection on the sliding piece, and atits forward end against a shoulder in the forward end of the tube s, theend of the piece a projecting through the forward end of the tube, andhaving a button or knob, 1c, secured thereto.

In Fig. 1 a small projection, c, is made upon the sliding piece a,which, when the barrel is locked to the frame, stands just in front ofthe fixed projection f on the joint D.

The extractor and its stem b, and their arl rangement within thecylinder with the actu- Yating-spring m, are the same as ordinarilyused. 1n Fig. 1 the extractorstem b is made somewhat short, or of aboutthe same length as the cylinder, with a screw, e, turned into the endofthe stem, to serve as a shoulder for the end of the spring m to bearagainst, and the sliding piece a is directly in front of this screw.

As arranged in Fig. l, the operation of my invention is as follows: Withthe parts all in place, as Shown in the drawings, it' the frame A beheld stationary, and the forward end of the barrel be tilted down, thesmall projection o upon the sliding piece a comes into contact with thefixed projection f on the joint D on the frame part of the arm; andwhile this tilting movement continues the sliding piece is pushed backand upward against the extractorstem and screw e, forcing the extractorback and removing the shells. During the' latter part of this backwardmovement the sliding 'piece a, moving in a straight line while beingcarried around the joint, finally moves so far away from the fixedprojection f that the latter loses contact with the point c, and theextractor aud stem b are quickly carried back into the cylinder, and thesliding piece a and the tube s (which has moved with the sliding piece)back into their original position in their recess. As the forward end ofthe barrel is then tilted up to lock the barrel to the frame, the pointc is then in front of the fixed projection f, instead of behind it-,asat first, and as the barrel moves up, the point c comes in contact withthe front side of the projection f, and the sliding piece is carriedforward to the position shown in dotted lines in Fig. 1, or until thepoint cis carried forward so far as to lose contact with the projectionf, when the spring n carries the sliding piece a quickly backward, withthe point c behind the projection f, or into the original position shownin Fig. l. y

The samemechanical equivalents, with the same principle of operation,are shown in Fig.

2, in which b isfthe extractor-stem, enlarged;

to the recess beneath the barrel, that part of it forward of theshoulder t" being made smaller, and the sliding piece a in Fig. 2 ismade in the form of an annular collar, and slides freely to and froonthe small part of the stem, a spring, n, placed upon this part of thestem, and bearing` at its forward end against a knob or button, k,secured to the end of the stem, or made thereon, operating f LI claim asnew isto keep the collar or sliding piece a back against the shoulder i.l

The operation in this modication is precisely similar to thatl alreadyhereinbefore -described-that is to say, as the barrelE B is tilted down,the fixed' projection f comes in contact with the front side of thepoint,` c, which, in this case, is-made annular, andthe extractor-stemand the sliding piece-a are carried-back and upward until-the annularpoint closes its contact with the projection f, and

the spring m forces the stein and sliding piece a quickly back intotheirl original position,

the projection f being'then in the rear of the.

sliding piece a. As the barrel is then tilted upward again theprojection c on the sliding 5 piece comes in contact witlr thei'rontvsideot' Y the projection f, and the sliding piece'iscar, riedforward until it loses contact with the projection, when it is forcedquickly to the rear side of the latter by the spring n into its`originalposition, as shown in Fig. 2.

It is evident that this-invention isequally Wellladapted to be used uponall tire-arms in which the barrel is pivoted to and tilts upon aframeorvbreech,yand the extractor can be larran ged to remove one ormoreshells, according to the nature of the arm, Without departingfrom theprinciple of operation, as above described;

Having thus described my invention, what In an automatic extractor forfire-arms, the combination of a fixed projection vizithaslid ing piecearrangedrin co,nnection,with theextractorfstem, said sliding-piece11a-vin ga back,- ward `movementwhen len gagedl with thexedj projection.to. extract the shells, and; hayingA alsoaf movement-forward;independent of the. extractor, to enable it lto-engage Withthe fixedprojection, and placeitself in p ositioufto ex.,- tract the shells,substantiallyfas,descri-bkeL:

DEXTER` SMITH.

Witnesses:

T.- A. CURTIS, E. A. THAYER.Y

